linyiqun commented on pull request #1454:
URL: https://github.com/apache/hadoop-ozone/pull/1454#issuecomment-701381759
>since it's a user token, suppose it has a much longer liveness than input
and output stream object instance, right?
A good point that @ChenSammi mentioned, there is a setting to decide the
expired time of block token and it's a long time as 1 day. This should be an
enough time for client to read/write block data. Suppose there also should be
some service to renew expired token.
```xml
<property>
<name>hdds.block.token.expiry.time</name>
<value>1d</value>
<tag>OZONE, HDDS, SECURITY, TOKEN</tag>
<description>
Default value for expiry time of block token. This
setting supports multiple time unit suffixes as described in
dfs.heartbeat.interval. If no suffix is specified, then milliseconds is
assumed.
</description>
</property>
```
In additional, I'm +1 for current change. Thanks @adoroszlai for addressing
the comment.
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